Just wondering…what if I want to use one phone running the freedrum app, and another phone to play the music? I often would like to change the volume only of the drums or the music, but it is not so easy to balance those volumes (especially when the Freedrum app freezes).
I would like to use a small, portable stereo mixer, which has at least 2 stereo inputs and 1 stereo mixed output, and volume controllers for each input (and output as well). It would be even better if this mixer had a built-in amplifier, which would run from batteries (or USB powerbank).
I’ve found some equipments on eBay:
If you have any other ideas, suggestions, or direct links to mixers, please share!